What will fit on a 1971 El Camino frame?

I have a 1971 El Camino with a 454 in it. I'm putting it on a new frame but may not use that body, or even an El Camino at all. I was wondering if anyone could help me out and let me know what else will fit on the frame. Make, Model, and Year would be awesome. I'm just looking to see what my options are. So far The only thing I know for sure will go on it is a Chevelle and someone else told me a Skylark would fit on it.